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Class 7 Heat Transfer in Nature worksheet
CBSE Science. Conduction, convection and radiation, land and sea breezes, the water cycle and groundwater. Every sheet has 20 questions in three sections and an answer key, and the numbers change every time.
Sample questions
Real questions from this chapter, as the app sets them. Tap Answer to see the answer and working.
Section A · multiple choice
- 1.
Heat moves through a solid mainly by:
- radiation
- evaporation
- convection
- conduction
Answer
(d) conduction
- 2.
Which of these is a GOOD conductor of heat?
- aluminium
- wool
- porcelain
- air
Answer
(a) aluminium
- 3.
Which of these is a POOR conductor of heat?
- silver
- copper
- steel
- porcelain
Answer
(d) porcelain
Section B · short answer
- 4.
What is conduction? Give an example.
Answer
Heat passing from particle to particle in a solid, such as a metal spoon in hot tea getting hot.
- 5.
Is each a "good" or "poor" conductor of heat? (a) aluminium (b) plastic
Answer
(a) good (b) poor
Section C · long answer
- 6.
Describe an activity to show conduction in a metal strip.
Answer
Stick pins with wax about 2 cm apart along a metal strip and heat one end. The pins fall one by one, starting from the heated end, as heat passes along the strip from particle to particle.
Fresh sheets for your child
In the app, every Heat Transfer in Nature sheet is new: the app remembers the questions your child has already had and leaves them out. Print the sheet as a PDF, or use notebook mode and write the answers in a notebook.
Coming soon for Android and iPhone.